Home / 2,940.96-4,431.69-2,432.40

Finding the Fourth Proportional to 2,940.96, 4,431.69 and 2,432.40

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Solution

The fourth proportional to 2,940.96, 4,431.69 and 2,432.40 is: 3,665.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,940.96 : 4,431.69 = 2,432.40 : x
  2. Step 2: Convert to fraction form
    2,940.96/4,431.69 = 2,432.40/x
  3. Step 3: Cross multiply
    2,940.96x = 4,431.69 × 2,432.40
  4. Step 4: Simplify right side
    2,940.96x = 10,779,642.76
  5. Step 5: Solve for x
    x = 10,779,642.76/2,940.96
  6. Step 6: Final answer
    x = 3,665.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.